Packet loss and Quality of service

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Difference between Packet loss and Quality of service

Packet loss vs. Quality of service

Packet loss occurs when one or more packets of data travelling across a computer network fail to reach their destination. Quality of service (QoS) is the description or measurement of the overall performance of a service, such as a telephony or computer network or a cloud computing service, particularly the performance seen by the users of the network.

Best-effort delivery

Best-effort delivery describes a network service in which the network does not provide any guarantee that data is delivered or that delivery meets any quality of service.

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Bit error rate

In digital transmission, the number of bit errors is the number of received bits of a data stream over a communication channel that have been altered due to noise, interference, distortion or bit synchronization errors.

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Bufferbloat

Bufferbloat is a cause of high latency in packet-switched networks caused by excess buffering of packets. Bufferbloat can also cause packet delay variation (also known as jitter), as well as reduce the overall network throughput.

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Computer network

A computer network, or data network, is a digital telecommunications network which allows nodes to share resources.

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End-to-end principle

The end-to-end principle is a design framework in computer networking.

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Erlang (unit)

The erlang (symbol E) is a dimensionless unit that is used in telephony as a measure of offered load or carried load on service-providing elements such as telephone circuits or telephone switching equipment.

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Internet Control Message Protocol

The Internet Control Message Protocol (ICMP) is a supporting protocol in the Internet protocol suite.

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Latency (engineering)

Latency is a time interval between the stimulation and response, or, from a more general point of view, a time delay between the cause and the effect of some physical change in the system being observed.

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Network congestion

Network congestion in data networking and queueing theory is the reduced quality of service that occurs when a network node or link is carrying more data than it can handle.

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Network scheduler

A network scheduler, also called packet scheduler, queueing discipline, qdisc or queueing algorithm, is an arbiter on a node in packet switching communication network.

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Online game

An online game is a video game that is either partially or primarily played through the Internet or any other computer network available.

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Quality of experience

Quality of Experience (QoE, less frequently QoX or QX) is a measure of the delight or annoyance of a customer's experiences with a service (e.g., web browsing, phone call, TV broadcast).

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Router (computing)

A router is a networking device that forwards data packets between computer networks.

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Streaming media

Streaming media is multimedia that is constantly received by and presented to an end-user while being delivered by a provider.

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Throughput

In general terms, throughput is the maximum rate of production or the maximum rate at which something can be processed.

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Traffic shaping

Traffic shaping is a bandwidth management technique used on computer networks which delays some or all datagrams to bring them into compliance with a desired traffic profile.

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Transmission Control Protocol

The Transmission Control Protocol (TCP) is one of the main protocols of the Internet protocol suite.

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Voice over IP

Voice over Internet Protocol (also voice over IP, VoIP or IP telephony) is a methodology and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet.

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